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><A
NAME="DUMMY-SECLABEL"
>F.12. dummy_seclabel</A
></H1
><P
>  The <TT
CLASS="FILENAME"
>dummy_seclabel</TT
> module exists only to support regression
  testing of the <TT
CLASS="COMMAND"
>SECURITY LABEL</TT
> statement.  It is not intended
  to be used in production.
 </P
><DIV
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><H2
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><A
NAME="AEN131661"
>F.12.1. Rationale</A
></H2
><P
>   The <TT
CLASS="COMMAND"
>SECURITY LABEL</TT
> statement allows the user to assign security
   labels to database objects; however, security labels can only be assigned
   when specifically allowed by a loadable module, so this module is provided
   to allow proper regression testing.
  </P
><P
>   Security label providers intended to be used in production will typically be
   dependent on a platform-specific feature such as
   <SPAN
CLASS="PRODUCTNAME"
>SE-Linux</SPAN
>.  This module is platform-independent,
   and therefore better-suited to regression testing.
  </P
></DIV
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CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN131667"
>F.12.2. Usage</A
></H2
><P
>   Here's a simple example of usage:
  </P
><PRE
CLASS="PROGRAMLISTING"
># postgresql.conf
shared_preload_libraries = 'dummy_seclabel'</PRE
><PRE
CLASS="PROGRAMLISTING"
>postgres=# CREATE TABLE t (a int, b text);
CREATE TABLE
postgres=# SECURITY LABEL ON TABLE t IS 'classified';
SECURITY LABEL</PRE
><P
>   The <TT
CLASS="FILENAME"
>dummy_seclabel</TT
> module provides only four hardcoded
   labels: <TT
CLASS="LITERAL"
>unclassified</TT
>, <TT
CLASS="LITERAL"
>classified</TT
>,
   <TT
CLASS="LITERAL"
>secret</TT
>, and <TT
CLASS="LITERAL"
>top secret</TT
>.
   It does not allow any other strings as security labels.
  </P
><P
>   These labels are not used to enforce access controls.  They are only used
   to check whether the <TT
CLASS="COMMAND"
>SECURITY LABEL</TT
> statement works as expected,
   or not.
  </P
></DIV
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><H2
CLASS="SECT2"
><A
NAME="AEN131680"
>F.12.3. Author</A
></H2
><P
>   KaiGai Kohei <CODE
CLASS="EMAIL"
>&#60;<A
HREF="mailto:kaigai@ak.jp.nec.com"
>kaigai@ak.jp.nec.com</A
>&#62;</CODE
>
  </P
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